| 초록 |
Lithium-sulfur batteries (LSBs) are considered to be one of the most promising next-generation batteries because of their high theoretical specific capacity and a substantial quantity of sulfur in the earth's crust. However, severe issues, such as shuttling effect of lithium polysulfides (LiPSs) and the low electrical conductivity of lithium sulfide, must be overcome to be commercialized. In this study, we developed a multifunctional separator coated with titanium oxynitride nanowires (TiON NWs) for LSB. This modified separator is expected to block the diffusion of LiPSs through electrolyte and offer a conductive electron route due to the synergistic effect of high polarity of titanium monoxide and high ionic conductivity of titanium nitride. Furthermore, the 1D NW structure can facilitate mass and charge transfer, thus increasing the rate capability of LSB. |
